Hard to judge from an 11 second clip, but looks like a reasonably nice cadence to his jog. The obvious first glance issue is that one second his head is too high with his nose pointed out, the next he's reaching down way too low to the ground (good if you're crossing a bridge in trail class, not good for a rail class.) That drastic inconsistency won't cut it at even entry-level shows. Even a consistently too-high head would be a better looking ride, IMO.
Proper training on how to use his body for reach, balance and collection should naturally lead to a more consistent head and neck carriage. Find a trainer to help you keep trying, he's a cute horse!